Finding the Fourth Proportional to 131,658.62, 197,508.36 and 42,891.44
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Solution
The fourth proportional to 131,658.62, 197,508.36 and 42,891.44 is: 64,343.82
Step by Step Solution
- Step 1: Write the proportion equation
131,658.62 : 197,508.36 = 42,891.44 : x - Step 2: Convert to fraction form
131,658.62/197,508.36 = 42,891.44/x - Step 3: Cross multiply
131,658.62x = 197,508.36 × 42,891.44 - Step 4: Simplify right side
131,658.62x = 8,471,417,972.44 - Step 5: Solve for x
x = 8,471,417,972.44/131,658.62 - Step 6: Final answer
x = 64,343.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.